New Words：

per [pɜr] prep. 每，每一

Sample Sentences：

The lunch is $3.50 per person.
Rooms cost £50 per person, per night.
These apples cost five yuan per kilogram.
How many words can you type per minute?
We could fly at 480 km per hour, avoiding traffic lights and busy roads.

kilogram n. [ˈkɪləɡræm] n. 千克; 公斤
kilo [ˈkiːloʊ] n.同 kilogram; 千克; 公斤

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